Published: April 25, 2026 · Last reviewed: April 2026 · Reviewed by: Buildup Contracting Pre-Construction Team · Service area: Toronto & GTA
This article is for planning purposes only. Cost, timeline, permit, code, gas, grease trap, public health, and accessibility requirements vary by project scope, municipality, landlord, site condition, engineering, equipment list, and current trade and supplier availability. Confirm specific requirements with the municipality, architect, engineer, landlord, public health unit, fire reviewer, AGCO, registered or certified fuels contractor, electrical contractor, or other applicable authorities.
Hotpot build-outs in the GTA typically start around $300/sf for a 1,800–3,000 sf space with induction tabletops in a former food-use unit; gas-tabletop concepts and bare shells run higher. Hotpot is the most ventilation-driven concept on the GTA restaurant menu — every table is a cooking station, which flips the usual kitchen exhaust math on its head. We've planned and built smaller hotpot rooms — a 1,800 sf Markham concept opens in the high six figures all-in — and larger Korean-BBQ-hybrid rooms that climb past that. These are planning estimates that vary by site condition, municipality, supplier availability, and the engineered design your mechanical, electrical, and plumbing team produces. This guide is for operators across the GTA hotpot corridor — Markham, Richmond Hill, Scarborough, North York, and Mississauga — who are trying to land on a real number before they sign a lease.
Hotpot is one of the few restaurant concepts where the cooking process is decentralized — the table is the cookline. That single fact reshapes the ventilation, the electrical or gas service, the floor-drain layout, the occupant-load math, and the grease-interceptor sizing. Operators who treat hotpot as "a regular restaurant with smaller hoods" routinely run into permit revisions, post-opening inspector callbacks, and dining rooms that fog up at full service. The lease is where most of those problems get baked in or designed out — what the landlord delivers (gas line size, electrical capacity, roof access, slab condition) sets the ceiling on what's affordable to build.
Most GTA hotpot projects we plan are 1,800–3,000 sf, 60–120 seats, with induction tabletops and a from-scratch broth kitchen. Inside that envelope the spread looks like this:
These ranges include kitchen rough-in, ventilation, finishes, washrooms, electrical service upgrades, and project management. They exclude smallware, POS, signage, and any tenant-supplied tabletop equipment. They are planning estimates — your project's actual cost depends on engineered drawings, supplier pricing at the time of award, and trade availability in the month you build.
The biggest swing factor is rarely finishes — it's the air system, the gas or electrical capacity, and the drain layout. We'll get to all three.
The kind of hotpot you're building decides almost everything downstream: hood package, gas or electrical service, kitchen layout, floor-drain plan, and how the public health inspector walks the space.
Chinese hotpot (Sichuan, Cantonese). The dominant format across Markham, Scarborough, and North York. Shared central pot, induction at the table is the norm, ventilation steady but moderate. Cleanest plan-review path, lowest install cost, easiest sell to landlords because it doesn't need gas at every seat.
Korean BBQ + hotpot hybrid. Two cooking modes per table — grease-laden grilling plus steam from broth. This concept needs both a grease hood over the cookline AND per-table downdraft or per-table extraction. The most build-intensive version of hotpot.
Persian hotpot (dizi-style, communal stews). A Richmond Hill specialty. Longer service, lower per-table heat, simpler ventilation, but the broth kitchen is larger because you're slow-cooking stocks all day.
Japanese shabu / sukiyaki. Lower flame, gentle steam, induction-friendly. The cheapest hotpot format to build and usually at the lower end of the cost range above.
Pick the lane on day one — the rest of the design follows.
Every standard restaurant hood calculation assumes cooking happens in the kitchen and the dining room just needs comfort cooling. Hotpot breaks that assumption. Steam, aroma, and (with gas) combustion happen at every seat, all night.
A hotpot ventilation system pulls more total air than most full-service kitchens of the same size. You're not just exhausting one cookline — you're exhausting 20–40 mini-cooklines, plus a back-of-house wok or broth station, plus general dining-room comfort. The total air movement, and the fresh air coming back in to replace it, is genuinely larger than what the same square footage would need under a non-hotpot concept.
The real planning question isn't "how big is the hood" — it's how the dining room captures, moves, and replaces air at every seat. There are two main approaches your mechanical engineer will look at:
Per-table downdraft. Extraction is built into the table itself, pulling steam and aroma down through a slot in the centre of the table and into a duct under the floor or behind the booth. Strong capture at the source, expensive to install (the slab and millwork have to accommodate it), and harder to retrofit if the table layout changes.
Ceiling-level extraction. A grid of extraction points or a continuous slot diffuser above each table, paired with engineered fresh-air supply at the perimeter or above each seat. Cheaper and more flexible than downdraft, but it has to be designed against the dining-room volume and seating density — too few extraction points and the room fogs up; too few supply points and it goes into negative pressure.
Most GTA hotpot rooms we plan use ceiling-level extraction with engineered fresh-air supply, and reserve per-table downdraft for premium or hybrid Korean-BBQ concepts where smoke capture is the harder problem. Either way, the actual airflow numbers, duct sizes, and supply unit tonnage come from your mechanical engineer's calculations against your specific seat count, table type, and building envelope. The numbers we mention here are planning observations, not engineered targets.
The tabletop heat source changes what the air system has to do.
Induction tabletops generate steam from the broth but no combustion at the seat. That means no per-seat combustion-air requirement — the supply air is sized for steam capture, comfort, and pressure balance, but you're not feeding fuel into a flame at every table.
Gas tabletops put combustion at every seat. Each seat needs engineered fresh air to keep combustion clean, dilute combustion products, and keep dining-room air quality where it needs to be. That drives a heavier supply-air system, a more careful pressure-balance calculation, and a more involved permit conversation. Gas-tabletop hotpot is build-able and we plan it regularly, but the engineering load is meaningfully higher than induction.
Make-up air (the engineered fresh air coming back into the building to replace what's exhausted) is the single most expensive line item on most hotpot projects. We've seen new operators try to value-engineer it first, and it's the one we push back on hardest. An undersized supply means the room fogs up, the smell sticks to fabric, and the public health inspector flags it on the pre-opening walk. We've broken down how Ontario kitchen ventilation actually works for operators who want the deeper read.
This is where the lease conversation gets technical. Whether you go induction or gas at the table determines which utility you're stress-testing.
Each induction tabletop unit can pull roughly 1.5–3.5 kW depending on size and brand. At 30 tables that's a real panel-load conversation, on top of the kitchen, the make-up air unit, and the rest of the dining room. Most plaza units arrive with a 200A service; a 30+ table induction hotpot frequently needs 400–600A, sometimes more, before the engineer is comfortable signing off.
That upgrade requires coordination with the utility (Toronto Hydro, Alectra, or whoever serves your plaza), the landlord (the service comes into the building, not just your unit), and ESA inspection. Lead time on a service upgrade has stretched in 2026 — plan for several weeks at minimum, sometimes longer if a transformer or meter-base change is involved. Your electrical engineer's load calculation determines the actual amperage for your equipment list; the numbers above are planning context, not a target.
If you're going gas tabletops, the conversation shifts to gas service. The total gas demand from 30 burning tables, plus any kitchen gas equipment, drives questions about your gas line size and the meter set serving the unit. The existing meter and line into a plaza unit may not have headroom for hotpot demand without a utility-coordinated upgrade.
Gas work must be handled by properly registered or certified fuels contractors or gas technicians. Depending on the scope, inspections and approvals may involve the utility, TSSA requirements, applicable fuel safety regulations, and the project's mechanical design. Each gas tabletop also needs an accessible emergency shutoff staff can reach without crossing a guest. Your mechanical engineer and the registered gas contractor coordinate sizing, line routing, and inspection sequencing.
A few operators run hybrid floors — induction in the main dining room, gas in a private room, or gas only at communal Korean-BBQ tables. Workable, but it multiplies the engineering coordination: two utility conversations instead of one, two sets of inspections, and a more complex pressure-balance calculation in the dining room. Plan for the extra design time on the front end.
Hotpot kitchens carry more water and broth across the floor than almost any other concept. Stocks get carried from the broth station to plating, broths get topped up at the table, dishwashing volume runs heavier because every guest uses sauce dishes, dipping bowls, and ladles. The floor plan needs to handle that.
Cooking-line floor drains. Beyond the standard kitchen-layout drains, plan for additional drains in the broth-pot zone and in the dish-pit zone. We see drain layout get done wrong when the architect drops two floor drains in standard locations and the line cooks end up walking soup ten feet to the nearest one. The right number, location, and pipe sizing comes from your plumbing engineer against the actual equipment list.
Slope and waterproof membrane on the dining floor. Depending on the concept (and especially on Korean-BBQ-hybrid floors where fat and broth both spill), the dining-floor area may need a slope toward strategically placed drains and a waterproof membrane underneath the finished floor. This isn't a standard restaurant detail — it's specific to concepts where liquid hits the floor in the dining room as a matter of course. Your architect and plumbing engineer make the call based on your seating layout and finish package.
Grease interceptor sizing. Hotpot pushes more fats, oils, and broth volume through the drain line than a typical full-service kitchen — both because of the broth itself and because dishwashing volume is heavier. The grease interceptor your plumbing engineer sizes for hotpot is usually larger than a comparable square-footage non-hotpot concept. We've covered the grease interceptor sizing logic for Ontario restaurants in detail; on hotpot projects, plan for the upper end of what that piece would suggest, and confirm against your engineer's calculation.
If the lease assumes "standard restaurant drain rough-in" without naming hotpot, get that re-scoped before signing.
Most GTA hotpot rooms run 80–150 seats. Once you cross 100 seats, occupancy-driven rules get more involved, and they ripple through the build:
Your architect confirms occupant-load-driven requirements with the city's plan reviewer, working from the engineered drawings and the proposed seating layout. The booth-vs-communal-table decision matters here too: communal tables seat more guests per square foot than booths, which raises occupant load, which can change the ventilation distribution, the exit math, and the washroom count. Don't lock in the seating layout before the architect has run the numbers.
Barrier-free washroom layout is part of every modern build — enough clear floor space for a wheelchair to turn, accessible fixtures, the right door hardware. On a 100-seat hotpot room you'll typically need two washrooms plus a barrier-free unit, but the actual count comes from the occupant-load calculation, not a rule of thumb.
The front-of-house gets the spotlight, but the back-of-house decides whether opening week goes smoothly.
Cold prep is the heart of the kitchen. Sliced beef, lamb, fish, tofu, leafy vegetables, mushrooms, dumplings — everything goes out raw on a tray. Plan for meaningfully more refrigerated prep area than a standard full-service kitchen, organized for FIFO so lunch service doesn't crowd the dinner mise.
Slicer station, dedicated and cold. A commercial meat slicer is non-negotiable for any hotpot doing volume. It needs its own cold zone, a cleanable surround, and a sanitation routine the public health inspector can watch in action. Plan a dedicated zone separate from the open prep line.
Broth kitchen. Two to four large stockpots running constantly, heavy hot-water demand, and floor drains where the broth actually gets carried (see the floor-drain section above).
Walk-in cooler. 8'x10' is the floor — most hotpot operators we plan with land at 10'x12' or 12'x14' once they price out their actual SKU count. Confirm slab capacity before signing the lease; a walk-in plus product is a heavy live load.
Plating line. High-volume, organized refrigerated display so servers can grab a tray of sliced beef in three seconds, not thirty. Get this right and a 100-seat room runs on fewer line cooks per shift.
Markham and Richmond Hill plan reviewers see hotpot regularly — both cities have a concentration of these formats, and reviewers tend to be familiar with per-table extraction and make-up-air balancing. That fluency is one reason permit timelines on hotpot in those cities can run tighter than a Toronto submission.
Across cities, the reviewer is looking for a consistent list:
We handle this back-and-forth before drawings hit the city. Pre-construction and permit coordination is built around catching these items at design so the reviewer signs off on the first or second cycle, not the fifth.
We work with operators opening hotpot and Korean BBQ across the GTA — Markham, Richmond Hill, Scarborough, North York, and Mississauga. Each has its own permit cadence, landlord posture, and plaza-unit reality. Markham restaurant construction is our most active hotpot lane. Richmond Hill restaurant construction tends to lean Persian and Japanese-style hotpot with a different finish-quality expectation. Scarborough projects sit in Toronto's permit queue and often need more lead time. Our project experience page shows the build types we've delivered across these corridors.
Framed positively: here's what operators who've opened multiple hotpot rooms get right on the front end.
Q: We're opening hotpot at a 1,800 sf plaza unit in Markham — realistic budget? A: If the unit was a previous food use and you go induction, a Markham hotpot in that footprint typically opens in the high six figures all-in, with $300–$380/sf as the starting band. Add 15–25% for gas tabletops or a Korean-BBQ hybrid. Final number depends on engineered drawings, equipment list, and supplier pricing — call 647-477-7999 for a site walk and a real range on your specific unit.
Q: Should I do gas or induction tabletops? A: Induction for almost all Chinese hotpot, shabu, and sukiyaki concepts. Faster permit, lower install cost, simpler insurance and inspection conversation, and the customer experience is the same. Gas only when traditional Korean BBQ or a specific brand reason demands the visible flame — and budget for the extra mechanical-engineering and registered-gas-contractor coordination.
Q: How much electrical capacity does an induction hotpot actually need? A: Each induction unit can pull roughly 1.5–3.5 kW; at 30+ tables that adds up to a real panel conversation, often pushing past a stock 200A plaza service. Your electrical engineer's load calculation determines the actual amperage. Getting the number before lease signing prevents nasty surprises at construction.
Q: How much vertical clearance does the ventilation actually need? A: 9'-6" minimum clear under beams is the planning target we work to. Per-table ceiling extraction plus the make-up air supply ductwork eats real space. Confirm the deck-to-deck height before signing the lease — adding clearance after the fact is rarely cost-effective.
Q: Will the public health inspector approve raw-meat platter service for hotpot? A: Yes — it's a recognized service model. The inspector wants refrigerated display held at the right temperature, a documented sanitation cycle on the slicer, FIFO labeling, and a handwash sink within reach of every prep zone. Most rejections come from missing handwash sinks or undersized cold display — both designed for upfront on a properly scoped hotpot project.
Q: What's the permit timeline difference between Markham, Richmond Hill, and a Toronto submission? A: Markham and Richmond Hill plan reviewers see hotpot regularly and the format is well-understood, which often means faster cycle times than a comparable Toronto submission. We've broken down GTA permit timelines city by city for operators choosing where to open.
Q: Do I still need a grease hood if I'm going pure induction with no kitchen wok line? A: You still need a grease hood over any wok station, deep fryer, or grill in the back-of-house — those don't disappear in an induction-tabletop concept. The dining-room air system and the back-kitchen hood are separate pieces of the design. We covered the grease hood vs. vapour hood decision in detail.
Q: How long does a hotpot build-out take from lease signing to opening? A: A typical Markham or Richmond Hill induction hotpot runs roughly 4–6 weeks pre-construction and permits, 12–18 weeks construction, and 2 weeks for inspections and the public-health walk-through — call it 18–26 weeks total. Gas tabletops, a non-food-use base unit, an electrical-service upgrade, or a Toronto submission stretch this. Our broader restaurant build-out timeline sets expectations for non-hotpot concepts too.
Q: Why is the grease interceptor on a hotpot bigger than the same square footage of standard restaurant? A: Hotpot pushes more broth, fat, and dishwashing volume through the line than a comparable full-service concept, because the broth itself ends up in the drain and because every guest dirties more dishes. Your plumbing engineer sizes the interceptor against the actual fixture and equipment loads. The grease interceptor sizing logic covers the framework.
If you've got a unit in mind anywhere in the GTA hotpot corridor, the fastest way to get a defensible build number is a site walk with someone who's planned this concept before. Call 647-477-7999, email info@buildupcontracting.ca, or send the lease draft and a few photos through the hotpot site-walk request form and we'll come back with a real range. Our restaurant FAQ covers the questions we get most often before a first call, and the GTA restaurant construction overview shows where we work.